BECQUEREL, JEAN.

Einleitung in eine Theorie der magneto-optischen Erscheinungen in Kristallen.

Berlin, Springer, 1929. 8vo. In contemporary half cloth with gilt lettering to spine. In "Zeitschrift für Physik", bd. 58, 1929. Entire issue offered. Library stamp to front free end-paper, otherwise fine and clean. Pp. 205-216. [Entire volume:VIII, (1), 865 pp.].

First printing of Becquerel's paper on the peculiar optical properties of the lanthanides for which he observed sharp absorption lines for lanthanide salts at low temperature.

Order-nr.: 49015